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authorUlrich Drepper <drepper@redhat.com>2006-08-14 22:16:14 +0000
committerUlrich Drepper <drepper@redhat.com>2006-08-14 22:16:14 +0000
commit107b8a922a9f72bae8d066549c675062bee0897f (patch)
treefd03a2fabf180e1abd1cfaef284447bdf63cad6f /libio/vasprintf.c
parent899937348376faa9092f123ffe7f000df0604b36 (diff)
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[BZ #1996]
2006-08-14 Ulrich Drepper <drepper@redhat.com> [BZ #1996] * libio/memstream.c (open_memstream): Allocate initial buffer with calloc. * libio/wmemstream.c (open_wmemstream): Likewise. * libio/strops.c: Pretty printing. (_IO_str_overflow): Clear uninitialized part of the new buffer. (enlarge_userbuf): New function. (_IO_str_seekoff): Call it if seek position is larger than current buffer. * libio/wstrops.c: Likewise. * libio/vasprintf.c: Add comment as to why we do not have to use calloc instead of malloc to allocate initial buffer. * libio/Makefile (tests): Add bug-memstream1 and bug-wmemstream1. * libio/bug-memstream1.c: New file. * libio/bug-wmemstream1.c: New file.
Diffstat (limited to 'libio/vasprintf.c')
-rw-r--r--libio/vasprintf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libio/vasprintf.c b/libio/vasprintf.c
index ac77330..2fdb9f6 100644
--- a/libio/vasprintf.c
+++ b/libio/vasprintf.c
@@ -46,6 +46,8 @@ _IO_vasprintf (result_ptr, format, args)
int ret;
_IO_size_t needed;
_IO_size_t allocated;
+ /* No need to clear the memory here (unlike for open_memstream) since
+ we know we will never seek on the stream. */
string = (char *) malloc (init_string_size);
if (string == NULL)
return -1;